Due to the great depth, good continuity and high reliability of monitoring, bore inclinometer becomes a main monitoring measure for the deformation of foundation pit walls.
钻孔倾斜仪由于监测深度大、监测点连续性好及监测可靠性高，已成为一种主要的基坑壁变形监测手段。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
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